Fixes and Hacks

grbl homing with NC switches can start out as something small but can become very tricky very fast. There are plenty of options within the firmware but getting a combination of settings right is critical. However with the correct wiring and right sequence of options in grbl can lead to flawless homing within minutes.

Here is a very nice guide that explains what it is and how you should go about selecting bits. This post explains what you should do after you’ve done the miserable deed. I used an Arduino as an ISP programmer…